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[committed] avr target patch for bug report 14064


Using -fdata-sections with the AVR port gives an abort.

The problem is in avr_unique_section.  This gets used by
TARGET_ASM_UNIQUE_SECTION, and predates the default_unique_section
function.  This has support for -ffunction-sections, but not
-fdata-sections.  Since the avr_unique_section function is a strict
subset of default_unique_section, we should just delete it and use the
default definition instead.  This makes -fdata-sections work, and gives
the same result for -ffunction-sections.

This was tested with a cross compiler, just compiling some small
testcases to verify that both -ffunction-sections and -fdata-sections
were working.
-- 
Jim Wilson, GNU Tools Support, http://www.SpecifixInc.com

Attachment: patch.unique.section
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